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Thread: 4l60E 4th shift pressure 96PSI

  1. #21
    Lifetime Member HellKnightHicks's Avatar
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    Idk really havent checked them to be honest.

    I have a pressure gauge on mine.

    She hits 250+ on the 3>4 shift or while the TCC is locked sometimes.

  2. #22
    Joe (Moderator) joecar's Avatar
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    If you're putting an appreciable level of torque (above 400 ftlb) and/or you're spinning the engine higher than stock (~6000 rpm) then the 4L60E needs various internal upgrades (the transmission thread at LS1tech has some good threads on which components)...

    with these upgrades, various people have got good results, but it does take knowledge/experience as Brad's info above indicates.

  3. #23
    Joe (Moderator) joecar's Avatar
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    +1 very important: do not lock TCC during shifts.

  4. #24
    Lifetime Member HellKnightHicks's Avatar
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    Has a full HD-2 Kit with the high rev release spring set.


    5 pinion planiteries
    Beast sunshell.
    Z-Pack
    500 Boost Valve
    Sonnex OD servo
    Vett Servo
    Full HD-2 Maxxed out

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